Global Patent Index - EP 2345475 A1

EP 2345475 A1 20110720 - Process and installation for the production of solid particles from a liquid or semi-liquid composition

Title (en)

Process and installation for the production of solid particles from a liquid or semi-liquid composition

Title (de)

Verfahren und Einrichtung zur Erzeugung von festen Partiklen von einem flüssigen oder semi-flüssigen Zusammensetzung

Title (fr)

Procédé et installation de fabrication de particules solides à partir d'une composition liquide ou semi-liquide

Publication

EP 2345475 A1 20110720 (FR)

Application

EP 11150831 A 20110113

Priority

FR 1050331 A 20100119

Abstract (en)

The process of manufacturing solid particles from a liquid or semi-liquid composition in an installation, comprises producing a stream of composition entering a top of a reaction tube and then circulating within the reaction tube from top to bottom, and supplying a cryogenic liquid to the installation for creating a cold gas stream rising co-currently against bottom of the reaction tube. The gas circulation is carried out by supplying the cryogenic liquid in the upper part of the installation, and by spraying to the bottom of the installation outside the reaction tube. The process of manufacturing solid particles from a liquid or semi-liquid composition in an installation, comprises producing a stream of composition entering a top of a reaction tube and then circulating within the reaction tube from top to bottom, and supplying a cryogenic liquid to the installation for creating a cold gas stream rising co-currently against bottom of the reaction tube. The gas circulation is carried out by supplying the cryogenic liquid in the upper part of the installation, and by spraying to the bottom of the installation outside the reaction tube. The gas present at the top of the reaction tube is re-directed down the installation by the arrival of cryogenic liquid by Venturi effect. A deflection unit is provided in downstream of the reaction tube for the deflection of the stream of particles obtained at the exit of the reaction tube between the output of the reaction tube and a recovery unit. An independent claim is included for an installation for manufacturing solid particles from a liquid or semi-liquid composition.

Abstract (fr)

Une installation de fabrication de particules solides, à partir d'une composition liquide ou semi-liquide, mettant en oeuvre un dispositif de formation et dépose de gouttes du produit, puis une étape de surgélation ou cristallisation totale ou partielle des gouttes ainsi formées, se caractérisant en ce qu 'elle comprend : - un tube de réaction dans la partie haute duquel un courant de gouttes produites par ledit dispositif de formation entre et au sein duquel ce courant circule de haut en bas ; - des moyens d'alimentation en liquide cryogénique, permettant d'obtenir un courant de gaz froid montant à contre-courant du bas du tube de réaction vers le haut du tube de réaction.

IPC 8 full level

B01J 2/04 (2006.01)

CPC (source: EP)

B01J 2/04 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2345475 A1 20110720; EP 2345475 B1 20130605; DK 2345475 T3 20130708; ES 2420585 T3 20130826; FR 2955267 A1 20110722; FR 2955267 B1 20140919; PL 2345475 T3 20131129; PT 2345475 E 20130710

DOCDB simple family (application)

EP 11150831 A 20110113; DK 11150831 T 20110113; ES 11150831 T 20110113; FR 1050331 A 20100119; PL 11150831 T 20110113; PT 11150831 T 20110113